Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 663 (CRUISE CONTROL SYSTEM)
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Section 663 (Cruise Control System)
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Section 663 (Cruise Control System)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic & Routing Diagrams
- Component Locator
- Diagnostic Information & Procedures
- Diagnostic Starting Point - Cruise Control
- Diagnostic System Check - Cruise Control
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC P0567: Resume/Accel Switch ON For Longer Than 90 Seconds
- DTC P0568: Set/Coast Switch ON For Longer Than 90 Seconds
- DTC P0571: TCC Brake Switch Signal Circuit
- DTC P1574: Rapic Decrease In Vehicle Speed
- Symptoms - Cruise Control
- Cruise Control Indicator Always On
- Cruise Control Indicator Inoperative
- Cruise Control Inoperative/Malfunctioning (W/O ETC)
- Cruise Control Inoperative/Malfunctioning (W/ETC)
- Repair Instructions
- Description & Operation
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.